LOTSORB UV 234 (CAS:)

Lotsorb UV 234 

Lotosrb® UV 234 is a high molecular weight ultraviolet light absorber (UVA) of the hydroxy phenyl benzotriazole class, imparting outstanding light stability to a variety of polymers.

Chemical Name:

2-(2’-hydroxy-3’,5’-di-cumyl phenyl) benzotriazole

Cas No.70321-86-7

Structural formula:

Physical Data

Appearance: White powder or granular

Purity:≥99.0% by HPLC 

Volatile matter:≤0.5% 

Melting point:137.0-141°C

Ash content:≤0.1%

Transmittance: 460nm 97.0%min 

                         500nm 98.0%min 

Applications

Lotosrb® UV 234 is highly effective for polymers usually processed at high temperatures such as polycarbonate, polyesters, polyacetal, polyamides, polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers, where loss of UVA is not tolerated as well as for polyvinylchloride, styrene homo- and copolymers. Applications include molded articles, films, sheets and fibers.

Solubility (20 °C) %    w/w

Acetone    2 

Chloroform 35 

Cyclohexane 5 

Ethanol 0.3 

Ethyl Acetate 4 

n-Hexane 0.6 

Methanol < 0.1 

Methylene Chloride 34 

Toluene 20 

Water < 0.01

UV Spectrum

Packaging and Handling

Packaging: 25Kg/Carton

Store the product in a cool, dry, well-ventilated area away from incompatible materials. Unless stated, proper storage will permit usage of the product for 12 months from the manufacture date. For additional handling and toxicological information, consult the Material Safety Data Sheet.